GCSE Physics - Nuclear Fission #38

What is the primary method used to initiate nuclear fission in reactors?

• Exposure to sunlight

• Application of heat

• Spontaneous fission

• Absorption of a neutron

In the nuclear fission process, what is released along with daughter nuclei?

• Protons

• Alpha particles

• Electrons

• Neutrons and gamma radiation

What is a key characteristic of a nuclear fission chain reaction?

• It requires constant external energy

• It can trigger more fission reactions

• It stops after one cycle

• It only occurs in laboratories

How is the rate of fission controlled in nuclear reactors?

• By increasing the temperature

• Using control rods to absorb neutrons

• By adding more uranium

• By reducing the water supply

What is a disadvantage of nuclear energy?

• It produces a lot of greenhouse gases

• It is a renewable energy source

• Nuclear waste is difficult to manage

• Nuclear power plants are cheap to build